Elastic and fibrous building composition



Patented Feb. 12, 1952 ELASTIC AND FIBROUS BUILDING COMPOSITION CharlesMack, Sarnia, Ontario, Canada, assignor to Standard Oil DevelopmentCompany, a corporation of Delaware No Drawing. Original applicationOctober 9,

1946, Serial No. 702,091. Divided and this application January 26, 1949,Serial No. 73,011

This invention relates to improvements in the production of buildingmaterial especially building materials of high elasticity that may beused in the preparation of sheets, boards or shingles of any desiredthickness, size or shape and relates to divisional subject matter of U.S. 702,091, filed October 9, 1946, now U. S. Patent No. 2,481,523.

Shingles or sheets used as weatherproof coverings are generally preparedby saturating a base of fibrous material with a binder and applyingthereto a coating of plastic or mastic material at an elevatedtemperature to make the covering waterproof and as a wearing surfacecoating, adding such material as powdered slate, granulated mineralaggregate or other hard weather-impervious ingredients. The applicationof heat is generally required both in applying the bituminous materialto the pre-saturated fibrous material and also when adding the mineralmaterial to make the wearing surface more impervious to the weather. Theshingles or sheets, when finally prepared, are either stiff and friableor soft and plastic. It is very desirable to prepare shingles or sheetsthat are elastic and readily regain their shape or form after beingdistorted by pressure when the pressure is released. Another undesirablefeature is the efiect of temperature on the physical properties of theshingles or sheets.

Building materials such as shingles, floor coverings or sound-absorptionboards which are flexible, highly elastic and resistant to the influenceof temperature are prepared by combining fibrous material with a blendof an aluminum soap and a plasticizer.

The aluminum soap consists of the aluminum salt of naphthenic acids orof any fatty acid. The plasticizer which is added to improve theelasticity of the aluminum soap consists of residual or refined mineraloils, refined cylinder oils of 180-3000 Saybolt Universal viscosity at210 F., reduced crude oil of 180-3000 Saybolt Universal viscosity at 210F., reduced or oxidized asphalts of any softening point, linseed,rapeseed, cottonseed or tung oil, lard and fish oils, linear hydrocarbonpolymers of molecular weight 5,000 to 20,000, or other substances havingsimilar properties. The amount of plasticizer used is -100% based on thealuminum soap.

The mixture of aluminum soap and plasticizer can be prepared by fusingthe ingredients together or as follows:

The naphthenic or fatty acids are mixed with the plasticizer, and themixture is emulsified with water containing enough alkali to neutralizethe acids. An aqueous solution of an inorganic aluminum salt such asaluminum chloride, sulfate or nitrate, is then mixed with the emulsion,and the resulting blend of aluminum soap and plastieizer is separatedfrom the water washed and dried.

4 Claims. (Cl. 106-199) The properties of such products are as follows:

Example I 50% aluminum naphthenate, 50% residual oil 180 seconds SayboltUniversal at 210 F.:

Softening point (ring and ball) F 160 Penetration gms. 5 sec. at 77 F.160 Penetration 100 gms. 5 sec. at 32 F.

Example II 50% aluminum soap from cod oil, 50% asphalt of 95 F.softening point:

Softening point (ring and ball) F 195 Penetration 100 gms. 5 sec. at 77F. 60 Penetration 100 gms. 5 sec. at 32 F. 32

The building materials can be produced by saturating roofing felt orsimilar fibrous materials with 10 to 90% of a blend of aluminum soap andan organic plasticizer, or they can be produced in situ as follows:

Wood pulp, paper pulp, cotton or other fibrous materials or theirmixture are dispersed in an emulsion prepared from the fatty acid,plasticizer and lye as described above. After coagulation with asufficient quantity of aluminum sulphate solution, the resulting mixtureof fibers, aluminum soap and plasticizer is fed through the rollers of apaper machine to squeeze out the water. Finally the resulting sheet isdried between hot rollers.

What is claimed is:

1. A flexible and elastic building composition comprising essentially afibrous material bonded with 10% to 90% of a blend having a softeningpoint of at least F. and comprising an aluminum soap of a fatty acid andan oil having a viscosity in the range from about to 3,000 Sayboltseconds at 210 F., said blend containing 10% to 100% of the said oilbased on the aluminum soap.

2. The composition of claim 1 in which the said oil is selected from theclass consisting of fish oil and vegetable oils.

3. The composition of claim 1 in which the said oil is a linearhydrocarbon polymer.

4. The composition of claim 1 in which the said oil is a petroleum oil.

CHARLES MACK.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 577,135 Holmes Feb. 16, 18971,764,837 Hodson et al June 17, 1930 2,028,155 Hodson Jan. 21, 1936FOREIGN PATENTS Number Country Date 127 Great Britain 1879

1. A FLEXIBLE AND ELASTIC BUILDING COMPOSITION COMPRISING ESSENTIALLY AFIBROUS MATERIAL BONDED WITH 10% TO 90% OF A BLEND HAVING A SOFTENINGPOINT OF AT LEAST 160* F. AND COMPRISING AN ALUMINUM SOAP OF A FATTYACID AND AN OIL HAVING A VISCOSITY IN THE RANGE FROM ABOUT 180 TO 3,000SAYBOLT SECONDS AT 210* F., SAID BLEND CONTAINING 10% TO 100% OF THESAID OIL BASED ON THE ALUMINUM SOAP.